multiple gestation


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Related to multiple gestation: polyhydramnios, Multiple pregnancies

multiple gestation

The presence of two or more embryos in the uterus. Twin and higher gestations have greatly increased in the past two decades due to the increased use of ovulation induction agents and assisted reproduction technologies. Currently 3% of all births are multiple gestations. When twins are diagnosed by ultrasound early in the first trimester, in about half of these cases one twin will silently abort, and this may or may not be accompanied by bleeding. This phenomenon has been termed the vanishing twin. The incidence of birth defects in each fetus of a twin pregnancy is twice that in singular pregnancies. Triplet, quadruplet, and higher gestation pregnancies are usually a result of commonly used fertility drugs. Multiple gestations are associated with an increased risk of perinatal morbidity and mortality.
See also: gestation
References in periodicals archive ?
Blue Cross Blue Shield of Delaware has noticed a 10% spike in the number of multiple gestations over the past five years; however, there's been a reduction in higher-order multiple births, said Chief Medical Director Dr.
Maternal morbidity and mortality associated with multiple gestations. Obstet Gynecol 2000;95(6 Pt 1):899-904.
Multiple gestations are increasing and is a common cause for perinatal and neonatal mortality and morbidity as compared to singleton.
Nulliparity and duration of pregnancy in multiple gestation. Obstet Gynecol 2004; 104: 110-3.
From this perspective, selective termination is not so much an extension of women's reproductive choice as it is the extension of control over women's reproductive capacity-through the use of fertility drugs, GIFT, and IVF as "solutions" to infertility that often result, when successful, in multiple gestations; through the provision of a technology, selective termination, to respond to multiple gestation that may create much of the same ambivalence for women as is generated by abortion; and finally through the imposition of limitations on women's access to the procedure.
Despite the great advances in perinatal & maternal mortality multiple gestations still presents formidable hazards both to the mother & her baby.
Physician performance on the prediction of the delivery date and diagnoses of placenta previa, ectopic pregnancy, multiple gestation, fetal death, fetal anomalies, and fetal sex are presented in Table 5.
A technique similar to amniocentesis (in which the uterine cavity is entered) has been used to terminate selectively a defective fetus, when a serious fetal anomaly, such as Down syndrome, occurs in a multiple gestation. This technique could be used to terminate two of the triplets, but it entails an incremental risk of miscarriage.
METHODOLOGY: A prospective observational study was performed on 50 women with multiple gestation who attended our department between Oct 2007 and July 2010.
Some absolute contraindications to aerobic exercise during pregnancy include hemodynamically significant heart disease, restrictive lung disease, incompetent cervix or cerclage, and multiple gestation at risk of premature labor, among others.
A 7th character of 0 will be reported if this is a singleton pregnancy, and the numbers 1 through 5 and 9 refer to which fetus of the multiple gestation has the problem.
(1) In the present study out of 5020 deliveries, the outcome of 4972 singleton deliveries and 48 multiple gestation were studied.46 delivery were twins and 2 were triplet.

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